Grain-binder



J. MACPHAIL. GRAIN BINDER.

' (No Model.)

Patented May 26, 1896.

ANDRIW BLRAHAM. FHOTU-LITHQWAS-MNGTUN. D C

UNiTED Srrrrns PATENT lrricn.

JAMES MAOPHAIL, OF ROCKFORD, ILLINOIS.

GRAIN-BINDER'.

SPECIFICATION forming part of Letters Patent No. 561,010, dated May 26, 1896.

Application filed July 25,1890. Serial No. 359,941. (No modelJ To @ZZ whom t may concern:

Beit known that I, J AMESMACPHAIL, a citizen of the United States, residing at Rockford, in the county of Vinnebago and State of Illinois, have invented certain new and useful Improvements in Grain-Binders, of which the following is a specification.

My invention relates to mechanism for raising and lowering the main frame of grainbinders, has for its objects to prevent jarring of and shocks to the machine, and consists of an oscillating worm-gear-bearing bracket, a sustaining-spring, and parts for operatively connecting the same with the machine-frame.

Referring to the accompanying drawings, which form a part of this specification, Figure 1 is a view showing the inner truss of the driving-Wheel frame of a grain-binder of the usual form and construction having my improvements operatively connected therewith. Fig. 2 is a detailed view of parts shown in Fig. 1, indicating by dotted lines the movements of which the same are capable. Fig. 3 is a section at the dotted line 3 3 of parts shown in Fig. 1.

'Like letters of reference indicate correspondin g parts throughout the several vi ews.

The dotted circle X indicates the position of the driving-wheel (not shown) of the machine.

A A are two pieces of angle-iron forming the inner truss of the driving-wheel frame (the outer truss, identical in form and construction therewith, being removed to show the construction and mode of operating my improvements) of the machine.

A2 are cross-pieces of angle-iron in transverse section, securing the inner truss A A and outer truss (not shown) together.

B is a bearing-plate rigidly connected with the parts A A'.

B is a bearing in the plate B, supporting the inner end of the shaft B2, the outer end whereof is supported by a bearing in a like plate fast to an outer truss, to which reference has already been made.

C is a segment-rack secured to the parts A A.

D is an oscillating worm-gear-bearing bracket mounted on the bearing-plate B, as

shown, or in any other suitable manner, and provided with transverse lugs D,havin g bearings D2 therein.

. E is a shaft, having a worm-gear E mounted thereon and being itself mounted in the bearings D2 in the lugs Dl.

E2 is a crank for operatin g the worm-gearE'.

E3 is a pawl pivoted to one of the lugs D' to prevent the worm-gear from revolving in one direction.

F is agear-wheel meshing with the wormgear E and mounted preferably on the sleevebearing B2, integral or rigidly connected with the plate B.

F' is a sprocket-wheel preferably integral With the gear-wheel F and mounted on the sleeve-bearing B3.

G is a gear-wheel meshing with the segmentrack C.- G' is a sprocket-wheel concentric and rigidly connected therewith.

G2 is the aXle of the driving-wheel of the machine, and has bearings in the wheels G G and in like wheels meshing with a segmentrack connected with an outside truss of the driving-wheel frame, to which reference has already been made.

H is a sprocketchain connecting the sprocket-Wheels F G'.

I is a sustaining-spring, one end thereof connecting with and operating on the oscillating bracket D and the other end connecting with and operatin g on the truss of the drivingwheel frame orsome attachment of the same. The spring I sustains the entire weight of the truss shown in Fig. 1 and its fellow truss (not shown) and all the parts supported by them.

Ihenever the driving-Wheel of a grainbinder provided with my improvement receives a shock or jar from coming in contact with any obstacle or passing over rough and uneven ground, the same will be transmitted to the spring I, which obviously will not communicate the same to any considerable extent to the truss and frame of the machine, but will counteract and dissipate the shock and prevent its communication to the machine, which obviously would wear out faster and operate less easily if subjected to frequent shocks, as those machines are which do not IOO have a spring interposed between the running-gear and cutting and binding mechanism thereof.

In case a shock should be transmitted to the spring Isuiiiciently Violent to break it the stop B4 would prevent the oscillating bracket D from turning farther than indicated by the dotted lines X in Fig. 2, thereby preventing any injury to the machine in such a contingency.

I claiml. In a grain-binder, in combination, a suitable bearin g-f rame, an oseillatin g bracket mounted thereon, a sustaining-spring connecting the oscillating bracket with the bearing-frame, a worm-gear having bearings on the oscillatingbracket, a gear-wheel mounted concentrically with the oscillating `bracket and meshing with the Worm-gear, the main axle, the segment-rack, the gear-Wheel connecting and cooperating therewith, the

sp1oeket-wl1eels-one concentric and rigidly connected with the gear-wheel ineshed With the segment-rack, and one concentric and rigidly connected with the gear-Wheel meshed with the worm-gear-and the sprocket-chain connecting the same, substantially as and for the purpose specified.

2. In a grain-binder, in combination, the ILruss, the oscillating bracket D, mounted on a bearing connected therewith, the wormgear E' having bearings thereon, the gear- Wheel F mounted on the oscillating bracket D and meshing with the worm-gear It', the spring I connecting the truss With the oscillating bracket D, the crank E2 for winding the Wormgear E', the segment-rack C secured to the truss, the gear-wheel G meshing therewith, the sprocket-wheel G concentric and rigidly connected with the gear G, the sprocket-wheel F', concentric and rigidly connected with the gealwheel F and the chain II connecting said sprocket-Wheels, substan tially as and for the purpose specified.

JAMES MACPITAIL.

fitncsscsz L. L. MORRISON,

F. BOWLING. 

